Extension reel for electric lamps, portable drills, and the like



0, MILLER EXTENS'IGRL' REEL E'QR ELECTRIC LAMPS, PORTABLE DRILLS, ANDTHE LIKE Filed Aug. 21, 1925 Mme-Mme: a W

* I Ava/Mix Patented Sept. 20, 1 92 7.

l li aqiAmxrmnxtension nner ro e ELECTRIC names; QQBTABLEZDRILLS, ANDTHE LIKE.

Application filed August 2151325. ,SeriQIyNoQ 51,700. i

This invention pertains-to improvements in selfgwinding reels inconnection with electric extension Wires torilluminating-w lamps,portable drills, and the like, and,-

', more'especially, in COHIiBCtlOIl WltllItllE pe-g I ci'iliarltype ofself windings;"reelsorspools ShOWIrin three Un'ited(StatesLetters Patents, viz: No. 12156302, dated'October 12,

i 1915 No. 1,214,031, dated January 30,1917; p and Nor1-,362,34A,dated;December 14, 1-920,

' and each and all-assigned to the same assignee', -The CincinnatiSpecialty :Manufac-* tur'ing Company, of CincinnatipOhio, as the oneherein, and WVhlCh'SPQClfiC improvements together with their obgeet andstructure, as

Well as operation, will be readily and fully "understood from thefollowing: description when takenlin connection -Wltl1 the accompanylngsheet of drawings, in Wh1chlatter 1 Figure I is a side elevation showingthe:

' device in normal position; LWith the electric conductor-Wire 1nwound-up condition and,

i more especially,displaying my invention in? jWork1ng- .place;on thenear-face ofthe reel;,

F ig. -2',"a fragmentary elevation of the inastee tter Omitted, andshowing, tmeshedrelation' therewith, ja minor shift-lock toothed ivhe'el or" pinion that is securely mounted,-

; tree/to rota tefupona short shaft or arbor that tu'rns' 'wlth n abearing- 'sleeve on the j suspens on-fram arm or auxiliary bracketlauiiiliary {bracket-arm 'and' a litragmentary ""pprtion oftheperipheral edge or flan'ge of 40 the reel; and' FigAQ an axialsection of the fsaid shift-lock pinion', its"arbor' b'earing-" sleeve"and theupper "corner of the said1auxi lyibracket-arm. 1 v I a P'indicates the jnearside-mem-ber ofthe I ci'rcuniferentially-groovedinternal-spring- "controlled" Winding-reel that f hashub-bearing-support (not'openl-y shown) in the sta 'tionar'yidislr *Bintermediate a. pendent pair "of thelarger- (5), andsany lateral play ofthe .pini'on,'- or of the' larger Track-member ;5 is duly compensatedforto preventloft-track of fork-arms (one only shown) C. Said '50pendent armsextend from the swivelD that toothed-ring or peripheral'rack on the "s d 'ne'a r face of thereelgbut with the: lat--lamp-cord-for vdetermining and, otherwise limiting its return-Windingpntheleel as Well as automatically breaking thelightor other serviceCllCUltiYhGD not injactualuse.

Forwardly-extending arms or triangularvshape plates F span the internalspringcontro1led reel A; the :former patents, andthe other parts ofthedev ce herein correspond to .thoseuin said same ,as int-he said formerjpatents too, including, also, "the bumper loop Grand braceHforthelupward thrust of the said stop-button Son; the completion of vthe "return-Winding of (the lampcordonethe reel. 7

My nwentionihere n will now be;taken up .rforqa brief and concisedescription, and,

,Inore.;especially, in connection with its cobturnspring-wouhdikiel uponwhich {it is 1removably secured by meansofa circularseries otherwise,mainly shown inFig; 1. The-said .raek 5-. is not ar: broadoneanditsteeth are preferably i round-ended with round concavities betwenthem. LSaid' v rack-teeth maybe made-integral.withithe periphery of thereelv:u'ieinber A if desired. Coactinglwith said ,circular rack 5 .Iprovide ,aminor, toothed iivh'eel ,or opinion 8 Whose teetliareroundended; and the -c'oncavities between; them acorrespond, except inenumber, of course, .to I

those oftheesaidolarge or master. rackffiand lntermeslninithe, operationofthe feel, for

automatically controlling ,the return .or bacli ward movementoftheIeelwhen thedevice, is in; extended use. The, said pinion; it

#Wifll L'be observed byereterence to ,Fig; 3, is ".Hmade considerablythicker than the said xlarger rack-member 5, so; that; there may be a rbroaderhearing-surface for. the teeth of-the latterfmemherin the servicerendered by. the v two iwheels-( 5 and 8) \wherein theSlnaller one (-8)rotates atleast .ten times as often as that 'ing-fof either,asczwe'lllaszto {allow perfectly ,lfree rotary l movementiof ,thegiarbor vor spindle 9 of the is clamped in. place in an o 'riroatltttmpr QITICIQKNATTIHQK10,,A,SSIGNQB remit elnoliimr Y FAQTU B M A SJNAT L eeee- QBE BA T F JOHIOJ -huttonaS is adjustably mounted on the a eectthatimainly lies ,inthe gprovisionp of a circularperipherally-toothed;ring or rack 5 that isot shghtl iesser'diameterzthan that of the said near sideemember Aofihereorifice 11 madein the pendent arm 12 by means of a pair of nuts 13 and 14 that engagethe threaded portion 15 of the said bearing-sleeve 10. as best seen inboth views, Figs. 3 and i. The outer end of the said spindle 9 extendsbeyond the outer end of the said bearin -sleeve and it is thereencircled by a plain collar 16 that is fixed thereto for turning withthe spindle and the pinion in unison and aiding in steadying orstabilizing the entire pinionbearing so that the pinion may not undulyvibrate in connection with its extended position inwardly beyond theinner face of the said pendent arm The extreme outer end of the saidspindle is duly flanged or riveted at 9" to h prevent its undueendwise-movement or slip ping from the bearing-sleeve 10. Any high orotherwise undue speed oi the pinion in either the winding or theunwinding action oi. the internal spring-controlled reel will thus notaffect the condition of the pinion or its action as a stop device forthe reel, which I will now refer to by stating that the outer face ofthe pinion is armed with a number of corresponding, gravitating pawls,in this instance, three of them, as indicated by the numerals 17, 18 and1.9, that each have back-stops 20 and whose inner free ends are adaptedto engage, in turn, a longitudinal notch or groove E21 made in the upperface of the plain inner end of the said bGRIlIIQ'SlQGVG 10, as seen inFigs. 2, 3 and at, but best seen, however, in Fig. 2, wherein the toothof pawl 18 is in activeengagement with the notch for the return orwinding movement of the reel as well as acting as a detent or stop forthe lamp-cord in its extended position for use.

The arrows on the pinion and rack, seen in 2, indicate the direction oftheir rotation when the automatic spring-winding tension oi the reel onthe lamp-cord. has

been brought into re-winding action after the said lamp-cord has been inextended posititm tor the use ot the lamp.

A handled lan'ip-socket L is attached to the outer end of thelan'ip-cord in Fig. 1,

but it is obvious that other attachments may be made to the lamp-cord tosuit the purpose of the outwardly extended use thereof.

The upper end 12 of the pendent arm 12 extends inwardly toward the lowercorner ot the swivel D and is provided with an upwm'dly-turned end Z toraccommodating: a screw that is used to attach the upper part ot the saidpendent arm 19 in place on the said corner of the swivel for the supportof the said pinion in meshing contact or relation with the toothed rack53. The lower end of the said pendent arm 12 is suitably attached bymeans of screws 1, 7, that, engage the near one oi: theforwardly-eatending arms or plates F, as best seen in Fig. 1, and thestop-ltuunper loop (i mounted at the meeting outer ends oi" the said forardlyextending arms or plates I in posit-ion for properly supporting thesaid loop for the lnnnper-contact oi the stolirbutton S on the lamp-cordW.

The continuous circular rack and pinion, together with theiraccompanying pawl-stops form a decided 'lnprovement over the old term oflateral arms or pins that extended from the near side-member oi the reelin the said former patents and became mutilated and bent in use andthereby caused detective service in the reverse rotations of the reelthat needed much repair, especially when the internal parts of thedevice hecame deranged in any way owing to a wild returnanovenlent ot'the reel under strong spring tension caused by one or more 01. saidlateral pins or arms becoming bent or broken, and, perhaps. at acritical time in the use of the lamp or other service device at theouter end oi the electric-conductor W, and oftentimes resulting in acomplete smash-up or wrecking oi the reel beyond ordinary repair.

1. In a self-winding electriowire reel, the combination, with aspringcontrolled wirercel. of a ratchet-stop device comprising acontinuous peripheral toothed edge or circular master rack, acorrespondingly toothed pinion whose arbor or spindle is mounted in anotched bearing-sleeve on the suspensiontramc of the reel, a pluralityof gravitating pawls or claws provided on one face of the pinion andveach pawl in turn adapted to engage the notch in the saidhoaring-sleeveto form an automatic dctent or stop to instantly catch and hold thespring-controlled wire-reel against the winding action thereof whenrequired, suliist'antially as shown and described. i

2. In a salt-winding electric-wire reel, the combination oi a reel orspool under springcontrolled tension, a removable rack-ring attached tothe. outer face oil Zone sidemember of the spool, a toothed. pinionmounted on a bracket extended from the reel supportingdranie and pawlmeans on the pinion adapted to engage a notch or the like. on thesnpporting-trame for providing an automatic detent or stop in the returnmovementot the electric-wire onto the reel. from its extended lampholding position until desired, substantially as shown and described.

In testimony whereof Tl hereunto aflix my sign attire.

OTTO MILLER.

